Detailed Instructions: In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Q: Question: Which of Microsoft's gaming systems for which the Forza series was developed has sold the most units? Passage:Forza Motorsport is a 2005 simulation racing video game developed by Turn 10 Studios and published by Microsoft Game Studios for the Xbox gaming system. The word Forza is Italian for power. The game is the first installment in the Forza series, a series that has continued on Microsoft's subsequent consoles, the Xbox 360 and the Xbox One. It features over 200 cars and multiple real world and fictional race courses. It also featured online multiplayer via Xbox Live. Forza Motorsport received universal acclaim according to the review aggregation website Metacritic, and received a Gold sales award from the Entertainment and Leisure Software Publishers Association (ELSPA), indicating sales of at least 200,000 copies in the United Kingdom. The NPD Group reported that in its release month the game sold over 100,000 copies in North America.

A:
b